Record Display for the EPA National Library Catalog


Main Title Acute Toxicities of Cd2+, Cr+6, Hg2+, Ni2+, and Zn2+ to Estuarine Macrofauna.
Author Eisler, Ronald ; Hennekey, Raymond J. ;
CORP Author Environmental Research Lab., Narragansett, RI.
Year Published 1976
Report Number EPA/600/J-77/151;
Stock Number PB-295 377
Additional Subjects Toxicology ; Metals ; Estuaries ; Fishes ; Gastropoda ; Bioassay ; Salinity ; Marine biology ; Concentration(Composition) ; Physiological effects ; Crustacea ; Cadmium ; Chromium ; Mercury(Metal) ; Nickel ; Zinc ; Toxicity ; Echinodermata ; Worms ; Annelida ; Crabs ; Toxic substances ; Heavy metals ; Water pollution effects(Animals) ; Nereis virens ; Hermit crabs ; Pagurus longicarpus ; Asterias forbesi ; Mummichog ; Mya arenaria ; Nassarius obsoletus ; Fundulus heteroclitus ; Starfishes ; Reprints ; Soft shell clams
Library Call Number Additional Info Location Last
NTIS  PB-295 377 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
Static acute toxicity bioassays were conducted at 20 C and 20 o/oo salinity with CdCl2-2 and one half H2O, K2CrO4, HgCl2, NiCl2-6H2O, and ZnCl2 using adults of starfish, Asterias forbesi; sandworm, Nereis virens; hermit crab, Pagurus longicarpus; softshell clam, Mya arenaria; mudsnail, Nassarius obsoletus; and mummichog, Fundulus heteroclitus, a fish. Concentrations (mg/L metal) fatal to 50% of the organisms in 168 hr ranged from 0.004 (clam) to 0.8 (mummichog) for mercury; 0.7 (clam, worm, crab and starfish) to 40.0 (mummichog) for cadmium; 0.2 (crab) to 52.0 (mummichog) for zinc; 0.7 (sandworm) to 44.0 (mummichog) for hexavalent chromium; and 13.0 (starfish) to 150.0 (mummichog) for nickel. Biocidal action was restricted to a relatively narrow range for all species-metals combinations tested: i.e., mean LC-75/LC-25 ratios for individual metals at 168 hr ranged between 2.82 (Zn) and 6.02 (Cd); for individual species this ratio extended from 2.76 (fish) to 4.46 (clam). It appears that acute toxicity evaluation of potentially hazardous metals in saline environments requires utilization of at least several representative species from divergent taxonomic and ecological niches.